Parts · Boards
Kitronik Compact 16 Servo Driver Board (5694) by Kitronik ↗
The Micro:bit plugs in and moves up to 16 servos at the same time, the board powers the Micro:bit, and every Micro:bit pin comes out on a row of pads.
| Pin or leg | What it is for |
|---|---|
| Servo SV1-SV16 | 3-pin plugs: signal, power (the middle pin, the same voltage as the power in), GND |
| Power in | screw terminal or servo-style plug, 3-12 V |
| Link pads (the row along the slot) | every Micro:bit pin: P0-P16, P19, P20, 3V and GND, for a pin header |
| Taken by the board | P19 and P20 (I2C: the servo chip listens there) |
Good to know: The pads give 3.3 V, not 5 V. The classic 5 V HC-SR04 needs 5 V: only when the board is powered with 5 V does a free servo plug's middle pin give it, and its Echo then needs the divider to the Micro:bit pin. The 3.3 V sensor is simpler. P0 is the Micro:bit V2 speaker, and P3, P4, P6, P7 and P10 are the LED screen: use P1, P2, P8 and P12-P16 first.
The idea behind it, step by step: Servo
No project uses it yet.
| Servos | up to 16, driven by a PCA9685 chip over I2C |
|---|---|
| Power in | 3-12 V on a screw terminal or a servo-style plug, with an on/off switch |
| Servo voltage | the same as the power in |
| For the Micro:bit | a regulated 3.3 V, so no battery pack for it |
| Size | 68 × 46.5 mm |
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